They opened the link on 6 December, the same date as the NoR. They only did so for one of the PCNs, but as the same tribunal decisions was referenced they can reasonably say they only needed to download the decision once.
@JustSayNonce at this point you need to decide whether you want to appeal on the basis that the PCN cannot demand the CAZ charge on top of the penalty, or settle matters at the discounted rate. This argument is untested so it comes with an element of risk but if you want to carry on, I'm happy to represent you. Obviously if you carry on, the full amount will be at stake and we cannot give much of an indication about what the likely result might be, as we've not run this argument before in a case where the CAZ charge had not been paid at all.